Electric bell-ringer.



PATENTED OGTLZLI, 1905.

I. Wl HALL. ELECTRIC BELL RINGEB..

APPLICATION FILED MAR. 21, 1904.

2 SHEETS-SHEET 1.

A TTOH'NE Y S.

No. 802,753. PATENTED OCT. 24, 1905. I. VV. HALL.

ELECTRIC BELL RINGER.

APPLICATION FILED MAR. Z1, 1904v A2 SHEETS-SHEET 2.

/A/ VEN TOR A Twig/ PATENT FFTlE.

IRA W. HALL, OF BROWNWGOD, TEXAS.

ELECTFZIIC BELL-RINGIEH.

Specification of Letters Patent.

Patented Oct. 24, 1905.

Application filed March 2l, 1904:. Serial No. 199,145.

To L7/Z whom, it may concern,.- v

Be it known that I, IRA W. HALL, a citizen of the United States, and aresident of Brownwood, in the county of Brown and State of Texas,haveinvented a new and Improved Electric Bell-Ringer, of which the followingis a full, clear, and exact description.

My invention relates to electric bell-ringers, my more particular objectbeing to produce a simple, reliable, and eflicient bell-ringer which maybe operated either by electric wires from a distance or by merelypressing a pushbutton.

Reference is to be had to the accompanying drawings, forming a part ofthis speciiication, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is aside elevation showing my in! vention in use, certain partsbeing indicated in section. Fig. 2 is a fragmentary plan View of themotor mechanism. Fig. 3 is a section upon the line 3 3 of Fig. 2 lookingin the direction of the arrow. Fig. 4 is a section upon the line 1 4L ofFig. 2 looking in the direction of the arrow, and Fig. 5 is a sideelevation of the weight 4:1 and electric device for releasing the same.

A framework 1 is provided with horizontal sills 2 3 for supporting theseveral working parts. A bell is shown at 4 and is suspended in theusual manner. This bell may be of any size, but is preferably made largeenough for use as a lire-alarm. Mounted within bearings 6 7 is arevoluble shaft 5, provided with a setcollar 8 and with a revoluble arm9, this arm being preferably integral with a hub 10, as indicated moreparticularly in Fig. 2. Acylindrical weight 11, serving as a clapper forthe bell, is provided with a central cylindrical space 12,whereby itfits loosely upon the pintle 14., being confined thereon by means of thedisk 13, as indicated more particularly in Fig. 2. A counterweight isprovided on the other end of the arm 9. A revolublc gear 16 is looselymounted upon the shaft 5, and a Vratchet-pinion 17 is ixedly mountedupon the said shaft. A pawl 18 is mounted upon the gear 16 and ispressed against the ratchet-pinion 17 by means of a spring 19. A largegear 20 meshes with the gear 16, this gear being mounted upon arevoluble shaft 23, journaled in bearings 21 22, and rigidly mountedupon this shaft is a roller 24. A spring-brake 25 3. The pressure of thebrake when pulled down is such as to restrain the pulley from rotating,and thereby to hold the shaft stationary. When tension upon the rope 28is relaxed, however, the brake clears the wheel 30 and allows the shaft5 to rotate. .Mounted rigidly upon the shaft 23 is a bevel-gear 31,revolving in a vertical plane, and this bevelgear meshes with anotherbevel-gear 32, revolving in a horizontal plane, said bevel-gear 32 beingrigidly mounted upon a vertical shaft 34C, provided with a handle 35.Secured upon the roller 24 at a point 32ll is a cord 32", provided atits lower end with a heavy weight 33. By rotating the crank 35 thevertical shaft 34 and bevel-gear 32 are set in motion, thus causing therotation of the bevel-gear 31 and roller 24, so as to wind up the weightThe rotation of the shaft 23 causes the rotation of the gears 2O and 16,thc pawl 18 serving as a one-way clutch and allowing the gear 16 to turnfreely in one direction, so as to allow the weight 33 to be readilywound up.

A number of trips 36 37, each having substantially the form of abell-crank, areniounted upon pivots 38 and 39, the uppermost trip 36being connected at Li() with the cord 28, these trips being actuatedsuccessively by the falling of a weight Z11, as hereinafter described.

l/Vhen the trip 36 is depressed to the position indicated by dottedlines in Fig'. 1, the cord 28, normally tight, is suddenly slackened.The trip 36 normally engages a pin 36, being drawn upward against saidpin by the tension of the cord. When the trip 36 is actuated by theweight 4:1, said trip contacts with a pin 36" and the cord 28 is throwninto the posi' tion shown by the dotted line a in Fig. 1, thus allowingthe cord 28 to pass tothe right of the pivot 38, after which the member36 stops against the pin 36". This allows the spring-brake 25 to clearthe friction-pulley 30,

thus releasing the motor mechanism above de scribed and allowing it tobe propelled by the descent or' the weight 33.

The weight 41 is slidably mounted within guideways 42 and 43 and isprovided on opposite sides with tongues 44 for engaging said g'uideways.The upper end of the weight is provided with a hook 45, whereby it maybe suspended. Any desired number of additional trips 37 may be provided,each having a cord 37 attached thereto at 40a, which cord may be used`for actuating any other mechanism which may be employed for turning onelectric lights, releasing horses, &c.

Mounted upon a horizontal beam 46 is a magnet 47 and a support 48,provided with a pivot 49. A trigger 50, provided with a lug 51, ispivotally mounted upon the pivot 49 and is free to swing', and an arch52 is provided with a pivot 53, and upon this pivot is mounted anarmature 54. The end of the trigger 50 is beveled, as shown in Fig'. 5,and is free to engage a notch 56 in the armature 54. The mag'net 47 isconnected with a battery 57 by means of wires 58 59, and a pushbutton 60is provided for the purpose of closing' the battery-circuit, and therebyenergizing the magnet 47. The push-button 60 is normally open, as shown,and wires 61 62 are connected with electric line-wires running to adistance. These linewires may be ordinary telephone-wires, it' desired,so that the hre-alarm may be rung from the central station.

The operation of my device is as follows: The operator grasps the handle35 and winds up the weight 33. The release of the pawl 18 allows theshaft 34, the gears 32 31, the roller 24, the shaft 23, and the gears 2Oand 16 to revolve, the pawl 18 sliding backward upon the ratchet-pinion17. The motion of the mechanism, due to the winding', does not,therefore, extend beyond the pawl 18, so that the bell 4 is not soundedwhile the weight 33 is being raised. During this time the springbrake 25prevents the pulley 30 from rotating', and thereby prevents the clapper11 from striking' the bell. rlhe apparatus is now ready to sound analarm. If the magnet 47 be energized by means of the battery 57, whichis accomplished either by pressing the push-button 60 or by energizingthe line-wires 61 62, the armature 54 is drawn downward, the end 55 ofthe trigger 50is released from the notch 56, the trig'- g'er turns tothe left from the position indicated in Fig. 5 and releases the weight41, and the weight slides quickly downward, successively striking theseveral trips 36 37. The descent or' the first or uppermost trip 36causes the release ot' the spring-brake 25 and starts the motormechanism, thus causing the bell 4 to ring continuously until themotor-weight 33 reaches the ground or until the spring-brake 25 is againapplied to the friction-wheel 3() by adjusting' the trip 36, the pins36a and 36 scares serving as limitingstops for the trip 36. When thetrip 36 is against the pin 36, the spring brake is off, and when saidtrip is against the pin 36 the brake is on. The rope 39 is employed forrestoring the trip 36 to its normal position. (Indicated by full linesin Fig'. 1.) It will be understood that each time the motor starts upthe arm 9 revolves, causing the clapper 11 to be thrown outward, thusvirtually lengthening the arm and striking the bell.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. VAn electric bell-ringer, comprising' a triggerdevice, electric mechanism connected therewith for actuating' the samefrom a distance, a weight connected with said trigger device andnormally suspended but free to fall when said trigger device isactuated, a

plurality of separate trips to be actuated successively by said weightin falling, alarm mechanism, motor mechanism for actuating the same, andmechanism to be actuated by said trips for starting said motormechanism.

2. In an electric bell-ringcr,the combination of an alarm, mechanism foractuating the same, a plurality of separate trips connected with saidmechanism, a weight for actuating said trips successively, and electricmechanism controllable at will from a distance for releasing saidweight.

3. In an electric bellringer,the combination of alarm mechanism, motormechanism for actuating the same, a brake for releasing' said motormechanism, a trip connected with said brake, a weight for operating saidtrip, and electric mechanism controllable from a distance for releasing'said weight.

4. In an electric bell-ringer,the combination of a plurality of separatetrips, a weight normally elevated but adapted to fall for the purpose ofactuating said trips successively, and electrical mechanism controllableat will from a distance for releasing said weight.

5. An electric bell-ringer, comprising motor mechanism, brake mechanismconnected with said motor mechanism for normally rendering the sameinactive, striking' mechanism connected with said motor mechanism andactuated thereby, a sounding member to be struck by said strikingmechanism so as to sound an alarm, a trip disposed a little distancefrom said brake mechanism, a iexible connection extending from said tripto said brake mechanism, and means controllable at will from a distancefor actuating said trip, thereby releasing said brake.

6. An electric bell-ringer, comprising an alarm, motor mechanism foractuating the same, brake mechanism for normally restraining said motormechanism, a trip connected with said brake mechanism for actuating' thesame relatively to said motor mechanism, a weight normally elevated butadapted to fall,

IOO

IIO

to this specification in the presence of two subscribing Witnesses.

IRA W. HALL.

Witnesses:

THos. DoRIAN, R. W. HARRYMAN.

